Motor.



N. H. HOLLAND.

MOTOR.

APPLICATION FILED APR. 14. 1914.

LlfiQJYWUL Patented Dec. 7, 1915.

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/7'/vsss nvvavroe I WWW 91+ MM i z I. M 5y v/e ww NEWMAN H. HOLLAND, OF WEST ORANGE, NEW JERSEY, ASSIGNOR TO NEW JERSEY PATENT COMPANY, OF ,WEST GRANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MOTOR.

Specification of Letters Patent.

Patented Dec. 2, 1215.

Application filed April 14, 1914. Serial No. 831,694.

To all whom it may concern:

Be it known that l[, NEWMAN ll. HOLLAND, a subject of the King of Great Britain, and a resident of VVeSt Grange, Essex county, New Jersey, have invented certain new and useful Improvements in Motors, of which the following is a description.

My invention relates to motors and more particularly to spring motors such as are used in connection with phonographs.

The principal object of my invention is to provide a simple, novel and elficient means for sounding a signal when the motor has nearly run down so as to call the attention of the operator to the fact that the motor requires rewinding.

@ther objects of my invention consist in the provision of the combinations of .parts and details of construction hereinafter more particularly set forth and claimed.

in order that my invention may be more clearly understood, attention is hereby directed to the accompanying drawing forming a part of this specification and in which Figure 1 is a view partly in plan and partly in section of one embodiment of my invention; Fig. 2 is a section taken on line 22 of Fig. 1 and looking in the direction of the arrows; Fig. 3 is a detail view taken on line 33 of Fig. 2 and showing the parts in the positions assumed by them when the motor is wound up; 'and Fig. 4 is a view similar to that of Fig. 3 showing the parts in the positions assumed by them when the motor is nearly run down.

In all the views, like parts are designated by the same reference numerals.

Referring to the drawing, the motor casing 1 supports a rotatable shaft 2 to which is secured, asby a screw 2, one end of the coiled motor spring 3. The opposite end of said spring is secured, as by a rivet 3', to the spring barrel 4 which is rotatably mounted on the shaft 2. -Secured to the upper end of the spring barrel 1 is. a worm wheel 5 which meshes with a worm 6 on the shaft 7 of governor 8, the shaft 7 being connected in suitable manner to the part, such as a phonograph mandrel or record support (not shown), tobe driven by the motor. Secured on the shaft 2 above the spring barrel and the worm wheel 5 is a spur gear 9 which meshes with a gear 10, the latter meshing with a gear 11 at the lower end of winding shaft 12. The gear 10 is rotatably secured to the casing 1, as by means of a screw 13. A washer 14: is located between the gear 10 and the top of the casing l. The winding shaft 12 extends vertically from the motor casing and is rotatably mounted in spaced bearings 15 and 16 formed on the motor easing. A washer 17 and pin 17 on the winding shaft 12 serve to prevent movement of said shaft inwardly of the casing 1, and the hub of the gear 11 serves to prevent movement of said shaft outwardly of the said casing.

A winding crank 18 is pivotally connected, as at 19, to the outer end of the shaft 12 so as to be able to move toward the motor casing and to lie in compact relation thereto. The lower portion of the crank 18 is flattened and is mounted in the slotted upper portion 12 of the shaft 12, pivot pin 19 projecting laterally from the flattened portion of the crank and fitting slidably in a slot 20 extend ing longitudinally of the shaft 12. The lowermost portion of the crank 18 is provided with a projection 21 adapted to fit in a correspondingly shaped recess in the shaft 12 to prevent the crank 18 from moving downwardly by gravity from its operative position shown in full lines in Fig. 2. By lifting the crank 18, the projection 21 may be lifted out of the recess in the shaft 12 and the crank 18 permitted to fall by gravity about the pivot 19 until the said crank occupies the position shown in dotted lines in Fig. 2. The crank may be again placed in operatii e position by lifting the same and at the same time turning the same until the projection 21 passes to a position above the recess in the shaft 12, the crank being then moved bodily downwardly to cause the engagement of said projection and said recess. ltotation of the winding mechanism by .the spring 3 may be prevented by a resilient friction clutch 22, comprising preferably a spiral spring surrounding shaft 12 and having its lower end secured to the motor casing, as by a screw 23' while its upper winding of the motor.

end is free. The internal diameter of the spring 22 is slightly less than the diameter of the shaft 12 so that the tendency of the spring to contract normally holds said shaft against rotation. The spring is wound in such a direction that it has a tendency to be unwound by the shaft when the latter is 1'0- tated in the direction required to wind the motor, and thereby sutiiciently releases its hold on the said shaft to permit a ready It will, however, beseen that any slight rotation of the shaft 12 in the opposite direction tends to draw the spring 22 tighter about said shaft and thereby e ctively clutches the same against rotation.

- Proceeding now to a consideration of the specific structure of applioants improved signaling means, the shaft 2 has secured thereto above the gear 9 a star wheel 24: meshing with a star wheel 25 secured to the upper end of a screw shaft 26 which is rotatably mounted in hearings in the motor casing. The shaft 26 has threaded thereon a collar or sleeve 27 which has formed at its upper end a star wheel 28 having teeth movable in a path intersecting the path of pins or projections 29 extending upwardly above the worm wheel 5. When the winding crank 18 is rotated to wind up themotor, star wheel 24: rotates star wheel 25 and screw shaft 26, and the star wheel 28 which enages one of the pins or projections 29 is fed by screw action axially along the shaft 26 in a downward direction. The pins or projections 29 are sufiiciently long to engage the star wheel 28 throughout its axial movement. While the motor is being unwound by the action of the spring 3, the projections 29 rotate the star wheel 28 and move the same upwardly in an axial direction along the screw shaft 26 which is held stationary except during the winding of the motor. When the star wheel 28 is in a position near the upper end of the screw shaft 26. rotation thereof causes its teeth to move in a path intersecting the projection 30 on a lever 31 which is pivoted, as at 32, above a hell or similar sounding means 33 suitably secured to the motor casing. The end of lever 310pposite that carrying the projection 30 is provided with a hammer or str ker 34 which is yieldingly pressed into engagement with the bell 33, as by a spring 35. The parts are so arranged that the rotating star. wheel 28 begins to engage the projection 30 when the motor is substantially or nearly run down.

Further rotation of said star wheel causes its teeth or projections to consecutively and periodically move the projection 30 to force the striker 34 away from the bell 33, the projection 30 being released as each toothor 1,1ea,vso

projection of the star wheel passes the same whereupon the spring 35 forces the. hammer 34 to strike the bell 33 and give a signal. It will be seen that as long as the teeth or projections of the star wheel 28 pass in the path of the projection 30, signals will be repeatedly given by the bell 33 at uniform time intervals. The parts are preferably so proportioned that the star wheel 28 engages the projection 30 throughout a number, for example, five or six, rotations, so that the signal will be substantially continuously given for a considerable time interval. When the motor is rcwound, the star wheel 28 is again moved out of the path of the projection 30 (see Fig. 3) its position below the said projection depending upon the amount the motor is wound up.

My invention is not limited to the precise construction described but comprehends numerous modifications falling within the scope of the appended claims.

Having now described my invention, what I claim as new and desire to protect by United States Letters Patent is as follows:

1. In a device of the class described, the combination with a motor, of a signaling device, rotatable means for actuating said signaling device, and means for driving said rotatable means from said motor and moving the same along the axis of rotation thereof into position to actuate said signaling device at a predetermined point in the operation of said motor, substantially as described.

2. In a device of the class described, the combination with a. spring motor, of a signaling device, a toothed wheel for repeatedly actuating said signaling device. and means for rotating said toothed wheel from said motor and for moving the same into position to actuate said signaling device at a predetermined point in the operation of said motor, substantially as described.

3. In a device of the class described, the combination with a spring motor, of a signaling device, a toothed wheel for repeatedly actuatingsaid signaling device, means for rotating said wheel from said motor and for moving the same into a position to actuate said signaling device when said motor has nearly run down, and means for winding said motor and moving said wheel out of said position, substantially as described.

4. In a. device of the class described. the combination of a motor, of a signalin device, rotatable means operable throughout at least one rotation to repeatedlv actuate said signaling device, and means for driving said rotatable means from said motor and moving the same into position to actuate said signaling device at a predetermined pomt in the operation of said motor, substantially as described.

5. In a device of the class described, the

combinationwith a spring motortof a sig-. tatable means out-of actuating position, sub- 10 nalingdevice, rotatable means operable stantiall'y as described.

throughout. at least one rotation to repeat- This specification signed and witnessed edly actuate said signaling device, means for this 10th day of April, 1914.

driving said rotatable means from said motor and for moving the same into position to NEWMAN L actuate said signaling device when said mo- \Vitnesses: tor has substantially run down, and means WILLIAM A. HARDY,

for winding said motor and moving said ro- MARY J. LAIDLAW. 

